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CORRECTIVE MIRROR [1 record]

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Record 1 2004-02-20

English

Subject field(s)
  • Facilities and Instruments (Astronomy)
  • Optics
CONT

[Hubble Space Telescope's wide-field planetary camera] That camera now will be fitted with the corrective mirrors as well. The mirrors act, in effect, like high-tech eyeglasses. In each pair, the first corrective mirror passes an image of the Hubble's 94.5 inch-diameter primary mirror onto a second mirror. The second glass is formed like the Hubble's mirror, only in exact reverse, thus canceling the flaw.

CONT

[...] The bigger telescope generates a brighter image but atmospheric disturbances make ground based telescopes any larger than current instruments impractical unless adaptive optics are installed [...] A large parabolic corrector mirror will be required to adjust for spherical aberration.

French

Domaine(s)
  • Installations et instruments (Astronomie)
  • Optique
CONT

[Télescope orbital Hubble] Il possède un miroir correcteur qui compense les défauts du miroir primaire.

CONT

Les systèmes de correction sont, en principe, très puissants. Ils devraient permettre aux télescopes à miroir liquide d'observer une vaste portion du ciel visible [...] nous testons aujourd'hui de nouvelles adaptations des miroirs correctifs.

Spanish

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